The inner flange is used to provide spacing and to disperse pressure across a wider surface area of the blade that is put on the blade by the spindle. BSS611 18V LXT Lithium-Ion 6-1/2" Circular Saw. 5...

The inner flange is used to provide spacing and to disperse pressure across a wider surface area of the blade that is put on the blade by the spindle. BSS611 18V LXT Lithium-Ion 6-1/2" Circular Saw. 5...